jsonAn error occurred while attempting to access the Spotify API, which resulted

Question

jsonAn error occurred while attempting to access the Spotify API, which resulted

Currently, I am working on acquiring an access Token through the Client Credentials Flow in the Spotify API. Below is the code snippet that I have been using:

let oAuthOptions = {
  url: 'https://accounts.spotify.com/api/token',
  method: 'POST',
  headers: {
    'Authorization' : 'Basic ' + btoa(CLIENT_ID+':'+CLIENT_SECRET)
  },
  grant_type: 'client_credentials',
  redirect_uri: 'http://localhost:8888/callback ',
};

fetch(oAuthOptions)
  .then(response => response.json())
  .then(response => {
      console.log(response)  
});

However, I am encountering an issue where I get an undefined json response and I'm not sure what's causing this problem. To double-check, I verified that the ID and client secrets are correct as I tested them with a curl command using base encoding and it worked fine.

javascript json reactjs authentication ecmascript-6

Answer 1

Answer №1

Make sure to include a catch(error) statement in the promise to handle any potential errors:

fetch(url, options)
  .then(response => response.json())
  .then(response => {
      console.log(response)  
   })
  .catch(e => console.log("Error occurred:", e));

If you encounter an error message like "SyntaxError: Unexpected token < in JSON at position 0", it means that the response does not contain valid JSON data. In such cases, try using response.text() instead to retrieve the plain text response:

fetch(url, options)
  .then(response => response.text())
  .then(response => {
      console.log(response)
   })

In the specific example given, the URL being used is

https://accounts.spotify.com/api/token

. However, please note that this URL may not allow cross-origin requests (CORS), so calling it from an unknown host on a website might result in a blocked response.

You can find a live example of this code on this jsfiddle page.

Answer 2

Make sure to include a catch(error) statement in the promise to handle any potential errors:

fetch(url, options)
  .then(response => response.json())
  .then(response => {
      console.log(response)  
   })
  .catch(e => console.log("Error occurred:", e));

If you encounter an error message like "SyntaxError: Unexpected token < in JSON at position 0", it means that the response does not contain valid JSON data. In such cases, try using response.text() instead to retrieve the plain text response:

fetch(url, options)
  .then(response => response.text())
  .then(response => {
      console.log(response)
   })

In the specific example given, the URL being used is

https://accounts.spotify.com/api/token

. However, please note that this URL may not allow cross-origin requests (CORS), so calling it from an unknown host on a website might result in a blocked response.

You can find a live example of this code on this jsfiddle page.

jsonAn error occurred while attempting to access the Spotify API, which resulted

Answer №1

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